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bpo-42739: Don't use sentinels to mark end of line table. (GH-25657)

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* Add length parameter to PyLineTable_InitAddressRange and doen't use sentinel values at end of table. Makes the line number table more robust.

* Update PyCodeAddressRange to match PEP 626.
This commit is contained in:
Mark Shannon 2021-04-29 13:12:51 +01:00 • committed by GitHub
parent 53dd6c99b3
commit c76da79b37
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13 changed files with 4968 additions and 4986 deletions
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4
Python/compile.c
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@ -6959,10 +6959,6 @@ assemble(struct compiler *c, int addNone)
if (!assemble_line_range(&a)) {
return 0;
}
/* Emit sentinel at end of line number table */
if (!assemble_emit_linetable_pair(&a, 255, -128)) {
goto error;
}
if (_PyBytes_Resize(&a.a_lnotab, a.a_lnotab_off) < 0) {
goto error;